
Crick and Watson's DNA Molecular Model
1953
1953
1949
1948-1953
1959
1949
1945-1955
1955
1957
1945
1960
1942
1950-1952
1940
1951
circa 1956-1959
1953
1945
1948
1946
1950-1959
1955
1950-1959
1955
1943
1948
1957
circa 1960
1940-1944
2000-100 BCE
1953-1958
1945
1940
1961
1947
1947
1940
1955
1948
1955
1961
1940
circa 1955
1942
1946
1941-1950
1953
1940
1957
1957
1960